Range mode🔗
Range mode configuration can instruct the DVL to search for bottom lock in a limited altitude range. This can improve performance when the expected minimum and maximum altitude are known, for example in a river, pool, tank, or other constrained environment.
Model applicability🔗
The range-mode concept applies to all DVLs. The table below documents the currently published A50/A125 range modes.
On supported models, the same configuration parameter can also enable water tracking.
Configuration format🔗
| Range specifier | Behavior |
|---|---|
auto |
The DVL searches for bottom lock in its full operational area. This is the default. |
=a |
The DVL is locked to range mode a, where a is a number from 0 to 4. |
a<=b |
The DVL searches for bottom lock from range mode a through range mode b. |
wt |
Enable water tracking on supported software and models. See Water tracking. (Only A50/A125) |
DVL A50/A125/A100 range modes🔗
| Range mode | Lower altitude (m) | Upper altitude (m) | Update rate per second (Hz) |
|---|---|---|---|
| 0 | 0.05 | 0.6 | 15 |
| 1 | 0.3 | 3.0 | 10 |
| 2 | 1.5 | 14 | 5 - 6 |
| 3 | 7.7 | 36 | 7 - 8 |
| 4 | 15 | max | 2 - 4 |
| wt | 1.5 | 4.5 | 2 |
DVL A250 range modes🔗
| Range mode | Lower altitude (m) | Upper altitude (m) | Update rate per second (Hz) |
|---|---|---|---|
| 0 | 0.3 | 3.0 | 10 |
| 1 | 1.5 | 14 | 5 - 6 |
| 2 | 7.7 | 72 | 7 - 8 |
| 3 | 15 | max | 2 - 4 |